Rhombic Antenna - Advantages of Rhombic Antennas

Advantages of Rhombic Antennas

• Its input impedance & radiation pattern are relatively constant over a 2:1 range of frequencies. Its impedance can be made relatively constant over a frequency range 4:1 or more, with the forward gain increasing at 6 dB per octave.
• Multiple rhombic antennas can be connected in an end-to-end fashion to form MUSA (Multiple Unit Steerable Antenna). MUSA arrays can receive long distance, short wave, horizontally polarized downcoming waves.
• In addition to its use as a simple and effective transmitting antenna (as described above), the rhombic can also be used as an HF receiving antenna with good gain and directivity. For example, BBC Monitoring's Crowsley Park receiving station has three rhombic antennas aligned for reception at azimuths of 37, 57 and 77 degrees.